ios get airplay name

tarting from iOS7 AudioToolbox API for currentRoute becomes deprecated:

Apple instead made currentRoute API available to you in AudioSession, which allows retrieving it's port information as well as listening to audioRouteChangeNotification in a nice way:

NSString* airplayName = [self activeAirplayOutputRouteName];
if (airplayName) {
    //airplay is active

}

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioRouteHasChangedNotification:) name:AVAudioSessionRouteChangeNotification object:[AVAudioSession sharedInstance]];

 - (NSString*)activeAirplayOutputRouteName
 {
     AVAudioSession* audioSession = [AVAudioSession sharedInstance];
     AVAudioSessionRouteDescription* currentRoute = audioSession.currentRoute;
     for (AVAudioSessionPortDescription* outputPort in currentRoute.outputs){
         if ([outputPort.portType isEqualToString:AVAudioSessionPortAirPlay])
             return outputPort.portName;
     }

     return nil;
 }

 - (void)audioRouteHasChangedNotification:(NSNotification*)notification
 {
     //do something
 }